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Giagulli VA, Lisco G, De Tullio A, Guastamacchia E, Triggiani V, Jirillo E. The pathogenic role of the immune system in erectile dysfunction and Peyronie's disease: focusing on immunopathophysiology and potential therapeutic strategies. Sex Med Rev 2024; 12:210-220. [PMID: 38196188 DOI: 10.1093/sxmrev/qead055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Revised: 09/25/2023] [Accepted: 10/09/2023] [Indexed: 01/11/2024]
Abstract
INTRODUCTION Erectile dysfunction (ED) represents the major cause of male sexual dysfunction, which is often associated with obesity, diabetes mellitus, atherosclerotic cardiovascular disease, and cigarette smoking. Peyronie's disease is a chronic disorder associated with irreversible fibrotic damage of the tunica albuginea leading to ED, painful erection, coital disturbance, and physical and social complaints. Both conditions are characterized by chronic inflammation, oxidative stress, and significant changes in intracavernous hydrodynamics. In this scenario, oxidized lipoproteins, M1-polarized macrophages, proinflammatory cytokines (such as the tumor necrosis factor α), endothelial nitric oxide synthase, penile smooth muscle cells, and toll-like receptors represent the main triggers of the inflammatory process in ED. Phosphodiesterase-5 inhibitors are the most common treatment for ED. This treatment is used intermittently, as it is conceived as a symptomatic and not curative therapy. Moreover, not all patients respond to phosphodiesterase-5 inhibitors (35%-85%), particularly those with dysmetabolic phenotypes. Additional or alternative treatments are therefore desirable, mostly in refractory cases. OBJECTIVES In this review, we describe the immune-mediated pathogenesis of ED and Peyronie's disease (PD). In our literature search we placed particular emphasis on potentially practical therapeutic approaches, including natural products (such as polyphenols), due to their anti-inflammatory and antioxidant activities, stem cell therapy, and platelet-derived preparations. METHODS We searched PubMed/MEDLINE, Web of Science, Scopus, Cochrane Library, Google Scholar, and institutional websites. Original studies, narrative reviews, systematic reviews, and meta-analyses written in English were searched, screened, and selected. RESULTS In animal models of ED and PD, therapeutic approaches, including anti-inflammatory and antioxidant agents, stem cell therapy, and platelet-derived preparations, have provided positive results, including improved penile function, reduced inflammation and oxidative stress, and promotion of tissue repair. However, clinical evidence of improvement in human patients is still insufficient. CONCLUSION Promising results for treating ED and PD have been shown in preclinical and pilot clinical studies, but specific clinical trials are needed to validate the efficacy of these therapeutic approaches in men with ED.
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Affiliation(s)
- Vito Angelo Giagulli
- Interdisciplinary Department of Medicine-Section of Internal Medicine, Geriatrics, Endocrinology, and Rare Diseases, School of Medicine, University of Bari "Aldo Moro", Policlinico, Piazza Giulio Cesare 11, 70124 Bari, Italy
| | - Giuseppe Lisco
- Interdisciplinary Department of Medicine-Section of Internal Medicine, Geriatrics, Endocrinology, and Rare Diseases, School of Medicine, University of Bari "Aldo Moro", Policlinico, Piazza Giulio Cesare 11, 70124 Bari, Italy
| | - Anna De Tullio
- Interdisciplinary Department of Medicine-Section of Internal Medicine, Geriatrics, Endocrinology, and Rare Diseases, School of Medicine, University of Bari "Aldo Moro", Policlinico, Piazza Giulio Cesare 11, 70124 Bari, Italy
| | - Edoardo Guastamacchia
- Interdisciplinary Department of Medicine-Section of Internal Medicine, Geriatrics, Endocrinology, and Rare Diseases, School of Medicine, University of Bari "Aldo Moro", Policlinico, Piazza Giulio Cesare 11, 70124 Bari, Italy
| | - Vincenzo Triggiani
- Interdisciplinary Department of Medicine-Section of Internal Medicine, Geriatrics, Endocrinology, and Rare Diseases, School of Medicine, University of Bari "Aldo Moro", Policlinico, Piazza Giulio Cesare 11, 70124 Bari, Italy
| | - Emilio Jirillo
- Interdisciplinary Department of Medicine-Section of Internal Medicine, Geriatrics, Endocrinology, and Rare Diseases, School of Medicine, University of Bari "Aldo Moro", Policlinico, Piazza Giulio Cesare 11, 70124 Bari, Italy
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Lin W, Chen H, Chen X, Guo C. The Roles of Neutrophil-Derived Myeloperoxidase (MPO) in Diseases: The New Progress. Antioxidants (Basel) 2024; 13:132. [PMID: 38275657 PMCID: PMC10812636 DOI: 10.3390/antiox13010132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Revised: 01/06/2024] [Accepted: 01/12/2024] [Indexed: 01/27/2024] Open
Abstract
Myeloperoxidase (MPO) is a heme-containing peroxidase, mainly expressed in neutrophils and, to a lesser extent, in monocytes. MPO is known to have a broad bactericidal ability via catalyzing the reaction of Cl- with H2O2 to produce a strong oxidant, hypochlorous acid (HOCl). However, the overproduction of MPO-derived oxidants has drawn attention to its detrimental role, especially in diseases characterized by acute or chronic inflammation. Broadly speaking, MPO and its derived oxidants are involved in the pathological processes of diseases mainly through the oxidation of biomolecules, which promotes inflammation and oxidative stress. Meanwhile, some researchers found that MPO deficiency or using MPO inhibitors could attenuate inflammation and tissue injuries. Taken together, MPO might be a promising target for both prognostic and therapeutic interventions. Therefore, understanding the role of MPO in the progress of various diseases is of great value. This review provides a comprehensive analysis of the diverse roles of MPO in the progression of several diseases, including cardiovascular diseases (CVDs), neurodegenerative diseases, cancers, renal diseases, and lung diseases (including COVID-19). This information serves as a valuable reference for subsequent mechanistic research and drug development.
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Affiliation(s)
- Wei Lin
- Clinical Pharmacology Research Center, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing 210009, China;
| | - Huili Chen
- Center of System Pharmacology and Pharmacometrics, College of Pharmacy, University of Florida, Gainesville, FL 32611, USA;
| | - Xijing Chen
- Clinical Pharmacology Research Center, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing 210009, China;
| | - Chaorui Guo
- Clinical Pharmacology Research Center, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing 210009, China;
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Zagrapan B, Klopf J, Celem ND, Brandau A, Rossi P, Gordeeva Y, Szewczyk AR, Liu L, Ahmadi-Fazel D, Najarnia S, Fuchs L, Hayden H, Loewe C, Eilenberg W, Neumayer C, Brostjan C. Diagnostic Utility of a Combined MPO/D-Dimer Score to Distinguish Abdominal Aortic Aneurysm from Peripheral Artery Disease. J Clin Med 2023; 12:7558. [PMID: 38137627 PMCID: PMC10743483 DOI: 10.3390/jcm12247558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Revised: 11/24/2023] [Accepted: 12/01/2023] [Indexed: 12/24/2023] Open
Abstract
Abdominal aortic aneurysm (AAA) and peripheral artery disease (PAD) share pathophysiological mechanisms including the activation of the fibrinolytic and innate immune system, which explains the analysis of D-dimer and myeloperoxidase (MPO) in both conditions. This study evaluates the diagnostic marker potential of both variables separately and as a combined MPO/D-dimer score for identifying patients with AAA versus healthy individuals or patients with PAD. Plasma levels of MPO and D-dimer were increased in PAD and AAA compared to healthy controls (median for MPO: 13.63 ng/mL [AAA] vs. 11.74 ng/mL [PAD] vs. 9.16 ng/mL [healthy], D-dimer: 1.27 μg/mL [AAA] vs. 0.58 μg/mL [PAD] vs. 0.38 μg/mL [healthy]). The combined MPO/D-dimer score (median 1.26 [AAA] vs. -0.19 [PAD] vs. -0.93 [healthy]) showed an improved performance in distinguishing AAA from PAD when analysed using the receiver operating characteristic curve (area under the curve) for AAA against the pooled data of healthy controls + PAD: 0.728 [MPO], 0.749 [D-dimer], 0.801 [score]. Diagnostic sensitivity and specificity ranged at 82.9% and 70.2% (for score cut-off = 0). These findings were confirmed for a separate collective of AAA patients with 35% simultaneous PAD. Thus, evaluating MPO together with D-dimer in a simple score may be useful for diagnostic detection and the distinction of AAA from athero-occlusive diseases like PAD.
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Affiliation(s)
- Branislav Zagrapan
- Department of General Surgery, Division of Vascular Surgery, University Hospital Vienna, Medical University of Vienna, 1090 Vienna, Austria; (B.Z.); (J.K.); (N.D.C.); (A.B.); (P.R.); (Y.G.); (A.R.S.); (L.L.); (D.A.-F.); (S.N.); (L.F.); (H.H.); (W.E.); (C.N.)
| | - Johannes Klopf
- Department of General Surgery, Division of Vascular Surgery, University Hospital Vienna, Medical University of Vienna, 1090 Vienna, Austria; (B.Z.); (J.K.); (N.D.C.); (A.B.); (P.R.); (Y.G.); (A.R.S.); (L.L.); (D.A.-F.); (S.N.); (L.F.); (H.H.); (W.E.); (C.N.)
| | - Nihan Dide Celem
- Department of General Surgery, Division of Vascular Surgery, University Hospital Vienna, Medical University of Vienna, 1090 Vienna, Austria; (B.Z.); (J.K.); (N.D.C.); (A.B.); (P.R.); (Y.G.); (A.R.S.); (L.L.); (D.A.-F.); (S.N.); (L.F.); (H.H.); (W.E.); (C.N.)
| | - Annika Brandau
- Department of General Surgery, Division of Vascular Surgery, University Hospital Vienna, Medical University of Vienna, 1090 Vienna, Austria; (B.Z.); (J.K.); (N.D.C.); (A.B.); (P.R.); (Y.G.); (A.R.S.); (L.L.); (D.A.-F.); (S.N.); (L.F.); (H.H.); (W.E.); (C.N.)
| | - Patrick Rossi
- Department of General Surgery, Division of Vascular Surgery, University Hospital Vienna, Medical University of Vienna, 1090 Vienna, Austria; (B.Z.); (J.K.); (N.D.C.); (A.B.); (P.R.); (Y.G.); (A.R.S.); (L.L.); (D.A.-F.); (S.N.); (L.F.); (H.H.); (W.E.); (C.N.)
| | - Yulia Gordeeva
- Department of General Surgery, Division of Vascular Surgery, University Hospital Vienna, Medical University of Vienna, 1090 Vienna, Austria; (B.Z.); (J.K.); (N.D.C.); (A.B.); (P.R.); (Y.G.); (A.R.S.); (L.L.); (D.A.-F.); (S.N.); (L.F.); (H.H.); (W.E.); (C.N.)
| | - Alexandra Regina Szewczyk
- Department of General Surgery, Division of Vascular Surgery, University Hospital Vienna, Medical University of Vienna, 1090 Vienna, Austria; (B.Z.); (J.K.); (N.D.C.); (A.B.); (P.R.); (Y.G.); (A.R.S.); (L.L.); (D.A.-F.); (S.N.); (L.F.); (H.H.); (W.E.); (C.N.)
| | - Linda Liu
- Department of General Surgery, Division of Vascular Surgery, University Hospital Vienna, Medical University of Vienna, 1090 Vienna, Austria; (B.Z.); (J.K.); (N.D.C.); (A.B.); (P.R.); (Y.G.); (A.R.S.); (L.L.); (D.A.-F.); (S.N.); (L.F.); (H.H.); (W.E.); (C.N.)
| | - Diana Ahmadi-Fazel
- Department of General Surgery, Division of Vascular Surgery, University Hospital Vienna, Medical University of Vienna, 1090 Vienna, Austria; (B.Z.); (J.K.); (N.D.C.); (A.B.); (P.R.); (Y.G.); (A.R.S.); (L.L.); (D.A.-F.); (S.N.); (L.F.); (H.H.); (W.E.); (C.N.)
| | - Sina Najarnia
- Department of General Surgery, Division of Vascular Surgery, University Hospital Vienna, Medical University of Vienna, 1090 Vienna, Austria; (B.Z.); (J.K.); (N.D.C.); (A.B.); (P.R.); (Y.G.); (A.R.S.); (L.L.); (D.A.-F.); (S.N.); (L.F.); (H.H.); (W.E.); (C.N.)
| | - Lukas Fuchs
- Department of General Surgery, Division of Vascular Surgery, University Hospital Vienna, Medical University of Vienna, 1090 Vienna, Austria; (B.Z.); (J.K.); (N.D.C.); (A.B.); (P.R.); (Y.G.); (A.R.S.); (L.L.); (D.A.-F.); (S.N.); (L.F.); (H.H.); (W.E.); (C.N.)
| | - Hubert Hayden
- Department of General Surgery, Division of Vascular Surgery, University Hospital Vienna, Medical University of Vienna, 1090 Vienna, Austria; (B.Z.); (J.K.); (N.D.C.); (A.B.); (P.R.); (Y.G.); (A.R.S.); (L.L.); (D.A.-F.); (S.N.); (L.F.); (H.H.); (W.E.); (C.N.)
| | - Christian Loewe
- Department for Bioimaging and Image-Guided Therapy, Division of Cardiovascular and Interventional Radiology, University Hospital Vienna, Medical University of Vienna, 1090 Vienna, Austria;
| | - Wolf Eilenberg
- Department of General Surgery, Division of Vascular Surgery, University Hospital Vienna, Medical University of Vienna, 1090 Vienna, Austria; (B.Z.); (J.K.); (N.D.C.); (A.B.); (P.R.); (Y.G.); (A.R.S.); (L.L.); (D.A.-F.); (S.N.); (L.F.); (H.H.); (W.E.); (C.N.)
| | - Christoph Neumayer
- Department of General Surgery, Division of Vascular Surgery, University Hospital Vienna, Medical University of Vienna, 1090 Vienna, Austria; (B.Z.); (J.K.); (N.D.C.); (A.B.); (P.R.); (Y.G.); (A.R.S.); (L.L.); (D.A.-F.); (S.N.); (L.F.); (H.H.); (W.E.); (C.N.)
| | - Christine Brostjan
- Department of General Surgery, Division of Vascular Surgery, University Hospital Vienna, Medical University of Vienna, 1090 Vienna, Austria; (B.Z.); (J.K.); (N.D.C.); (A.B.); (P.R.); (Y.G.); (A.R.S.); (L.L.); (D.A.-F.); (S.N.); (L.F.); (H.H.); (W.E.); (C.N.)
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Borato DCK, Kalva-Filho CA, Machado EP, Barbosa CR, Vellosa JCR. Effect of non-nucleoside reverse transcriptase inhibitors and protease inhibitors on serum levels of myeloperoxidase and C-reactive protein in HIV-infected individuals. BRAZ J PHARM SCI 2022. [DOI: 10.1590/s2175-97902020000118780] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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Miyata Y, Matsuo T, Nakamura Y, Mitsunari K, Ohba K, Sakai H. Pathological Significance of Macrophages in Erectile Dysfunction Including Peyronie's Disease. Biomedicines 2021; 9:biomedicines9111658. [PMID: 34829887 PMCID: PMC8615952 DOI: 10.3390/biomedicines9111658] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Revised: 11/05/2021] [Accepted: 11/09/2021] [Indexed: 12/17/2022] Open
Abstract
Erectile function is regulated by complex mechanisms centered on vascular- and nerve-related systems. Hence, dysregulation of these systems leads to erectile dysfunction (ED), which causes mental distress and decreases the quality of life of patients and their partners. At the molecular level, many factors, such as fibrosis, lipid metabolism abnormalities, the immune system, and stem cells, play crucial roles in the etiology and development of ED. Although phosphodiesterase type 5 (PDE5) inhibitors are currently the standard treatment agents for patients with ED, they are effective only in a subgroup of patients. Therefore, further insight into the pathological mechanism underlying ED is needed to discuss ED treatment strategies. In this review, we focused on the biological and pathological significance of macrophages in ED because the interaction of macrophages with ED-related mechanisms have not been well explored, despite their important roles in vasculogenic and neurogenic diseases. Furthermore, we examined the pathological significance of macrophages in Peyronie’s disease (PD), a cause of ED characterized by penile deformation (visible curvature) during erection and pain. Although microinjury and the subsequent abnormal healing process of the tunica albuginea are known to be important processes in this disease, the detailed etiology and pathophysiology of PD are not fully understood. This is the first review on the pathological role of macrophages in PD.
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Affiliation(s)
| | - Tomohiro Matsuo
- Correspondence: ; Tel.: +81-95-819-7340; Fax: +81-95-819-7343
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Di Stasi LC. Coumarin Derivatives in Inflammatory Bowel Disease. Molecules 2021; 26:molecules26020422. [PMID: 33467396 PMCID: PMC7830946 DOI: 10.3390/molecules26020422] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2020] [Revised: 12/21/2020] [Accepted: 12/23/2020] [Indexed: 12/12/2022] Open
Abstract
Inflammatory bowel disease (IBD) is a non-communicable disease characterized by a chronic inflammatory process of the gut and categorized into Crohn’s disease and ulcerative colitis, both currently without definitive pharmacological treatment and cure. The unclear etiology of IBD is a limiting factor for the development of new drugs and explains the high frequency of refractory patients to current drugs, which are also related to various adverse effects, mainly after long-term use. Dissatisfaction with current therapies has promoted an increased interest in new pharmacological approaches using natural products. Coumarins comprise a large class of natural phenolic compounds found in fungi, bacteria, and plants. Coumarin and its derivatives have been reported as antioxidant and anti-inflammatory compounds, potentially useful as complementary therapy of the IBD. These compounds produce protective effects in intestinal inflammation through different mechanisms and signaling pathways, mainly modulating immune and inflammatory responses, and protecting against oxidative stress, a central factor for IBD development. In this review, we described the main coumarin derivatives reported as intestinal anti-inflammatory products and its available pharmacodynamic data that support the protective effects of these products in the acute and subchronic phase of intestinal inflammation.
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Affiliation(s)
- Luiz C Di Stasi
- Laboratory of Phytomedicines, Pharmacology, and Biotechnology (PhytoPharmaTech), Department of Biophysics and Pharmacology, Institute of Biosciences, São Paulo State University (UNESP), 18618-689 Botucatu, SP, Brazil
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Zheng PF, Yin RX, Guan YZ, Wei BL, Liu CX, Deng GX. Association between SLC44A4-NOTCH4 SNPs and serum lipid levels in the Chinese Han and Maonan ethnic groups. Nutr Metab (Lond) 2020; 17:105. [PMID: 33317561 PMCID: PMC7737288 DOI: 10.1186/s12986-020-00533-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Accepted: 12/03/2020] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The current research was to assess the relationship of the solute carrier family 44 member 4 (SLC44A4) rs577272, notch receptor 4 (NOTCH4) rs3134931 SNPs and serum lipid levels in the Han and Maonan ethnic groups. METHODS The genetic makeup of the SLC44A4 rs577272 and NOTCH4 rs3134931 SNPs in 2467 unrelated subjects (Han, 1254; Maonan,1213) was obtained by using polymerase chain reaction and restriction fragment length polymorphism technique, combined with gel electrophoresis, and confirmed by direct sequencing. RESULTS The genotype frequencies of SLC44A4 rs577272 and NOTCH4 rs3134931 SNPs were different between Han and Maonan populations (P < 0.05); respectively. The SLC44A4 rs577272 SNP was associated with total cholesterol (TC) and high-density lipoprotein cholesterol (HDL-C) levels in Maonan group. The NOTCH4 rs3134931 SNP was associated with triglyceride (TG) in Han; and TG and low-density lipoprotein cholesterol (LDL-C) levels in Maonan groups (P < 0.025-0.001). Stratified analysis according to gender showed that the SLC44A4 rs577272 SNP was associated with TC and HDL-C in Han and Maonan females; TC in Maonan males, meanwhile, the NOTCH4 rs3134931 SNP was associated with TG and HDL-C in Han males; TG in Han females; TG and LDL-C in Maonan males; and TG, HDL-C and LDL-C in Maonan females. Linkage disequilibrium analysis showed that the most common haplotype was rs577272G-rs3134931A (> 50%) in both Han and Maonan groups. The haplotype of rs577272G-rs3134931A was associated with TG and HDL-C in Han; and TC, TG and HDL-C in Maonan ethnic groups. CONCLUSIONS These results suggest that the relationship among SLC44A4 rs577272, NOTCH4 rs3134931 SNPs and serum lipid parameters may vary depending on the gender and/or ethnicity/race in some populations. Haplotypes could explain more changes in serum lipid parameters than any single SNP alone particularly for TC, TG and HDL-C.
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Affiliation(s)
- Peng-Fei Zheng
- Department of Cardiology, Institute of Cardiovascular Diseases, The First Affiliated Hospital, Guangxi Medical University, Nanning, 530021, Guangxi, People's Republic of China
| | - Rui-Xing Yin
- Department of Cardiology, Institute of Cardiovascular Diseases, The First Affiliated Hospital, Guangxi Medical University, Nanning, 530021, Guangxi, People's Republic of China. .,Guangxi Key Laboratory Base of Precision Medicine in Cardio-Cerebrovascular Disease Control and Prevention, Nanning, 530021, Guangxi, People's Republic of China. .,Guangxi Clinical Research Center for Cardio-Cerebrovascular Diseases, Nanning, 530021, Guangxi, People's Republic of China.
| | - Yao-Zong Guan
- Department of Cardiology, Institute of Cardiovascular Diseases, The First Affiliated Hospital, Guangxi Medical University, Nanning, 530021, Guangxi, People's Republic of China
| | - Bi-Liu Wei
- Department of Cardiology, Institute of Cardiovascular Diseases, The First Affiliated Hospital, Guangxi Medical University, Nanning, 530021, Guangxi, People's Republic of China
| | - Chun-Xiao Liu
- Department of Cardiology, Institute of Cardiovascular Diseases, The First Affiliated Hospital, Guangxi Medical University, Nanning, 530021, Guangxi, People's Republic of China
| | - Guo-Xiong Deng
- Department of Cardiology, Institute of Cardiovascular Diseases, The First Affiliated Hospital, Guangxi Medical University, Nanning, 530021, Guangxi, People's Republic of China
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Acik V, Kulahcı O, Arslan A, İstemen İ, Olguner SK, Arslan B, Gezercan Y, Ökten Aİ. The Impact of Myeloperoxidase in the Rupturing of Cerebral Aneurysms. World Neurosurg 2020; 147:e105-e110. [PMID: 33285335 DOI: 10.1016/j.wneu.2020.11.151] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2020] [Revised: 11/25/2020] [Accepted: 11/26/2020] [Indexed: 12/19/2022]
Abstract
OBJECTIVE In this study, we aimed to examine the effect of myeloperoxidase on aneurysm rupture in patients with cerebral aneurysms with and without rupture. METHODS The study included 53 patients with subarachnoid hemorrhage operated on due to cerebral aneurysm in our clinic, and 49 patients without subarachnoid hemorrhage. After the operation, the domes taken from the aneurysms were embedded in paraffin blocks and scored after hematoxylin and eosin and immunohistochemical staining was carried out. RESULTS The myeloperoxidase score was 1 in 29.4% of the patients, 2 in 40.2%, 3 in 12.7%, and 4 in 17.6%. Multiple aneurysms were detected in 24.5% of the patients. The median myeloperoxidase score was higher in patients with bleeding aneurysms than those that did not bleed (3 vs. 1; P < 0.001). In addition, the ratio of patients with a myeloperoxidase score of 2 or above was higher among patients with bleeding aneurysms. CONCLUSIONS In our study, finding myeloperoxidase scores higher in cases of ruptured aneurysms compared with unruptured aneurysms reveals the relationship of myeloperoxidase with ruptured cerebral aneurysms.
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Affiliation(s)
- Vedat Acik
- Department of Neurosurgery, Adana City Training and Research Hospital, Adana, Turkey.
| | - Ozgur Kulahcı
- Department of Pathology, Adana City Training and Research Hospital, Adana, Turkey
| | - Ali Arslan
- Department of Neurosurgery, Adana City Training and Research Hospital, Adana, Turkey
| | - İsmail İstemen
- Department of Neurosurgery, Adana City Training and Research Hospital, Adana, Turkey
| | - Semih Kivanc Olguner
- Department of Neurosurgery, Adana City Training and Research Hospital, Adana, Turkey
| | - Baris Arslan
- Department of Anesthesia, Adana City Training and Research Hospital, Adana, Turkey
| | - Yurdal Gezercan
- Department of Neurosurgery, Adana City Training and Research Hospital, Adana, Turkey
| | - Ali İhsan Ökten
- Department of Neurosurgery, Adana City Training and Research Hospital, Adana, Turkey
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Malecki C, Hambly BD, Jeremy RW, Robertson EN. The Role of Inflammation and Myeloperoxidase-Related Oxidative Stress in the Pathogenesis of Genetically Triggered Thoracic Aortic Aneurysms. Int J Mol Sci 2020; 21:ijms21207678. [PMID: 33081376 PMCID: PMC7590002 DOI: 10.3390/ijms21207678] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Revised: 10/08/2020] [Accepted: 10/14/2020] [Indexed: 12/12/2022] Open
Abstract
Genetically triggered thoracic aortic aneurysms (TAAs) are usually considered to exhibit minimal levels of inflammation. However, emerging data demonstrate that specific features of an inflammatory response can be observed in TAA, and that the extent of the inflammatory response can be correlated with the severity, in both mouse models and in human studies. Myeloperoxidase (MPO) is a key mediator of the inflammatory response, via production of specific oxidative species, e.g., the hypohalous acids. Specific tissue modifications, mediated by hypohalous acids, have been documented in multiple cardiovascular pathologies, including atherosclerosis associated with coronary artery disease, abdominal aortic, and cerebral aneurysms. Similarly, data are now emerging that show the capacity of MPO-derived oxidative species to regulate mechanisms important in TAA pathogenesis, including alterations in extracellular matrix homeostasis, activation of matrix metalloproteinases, induction of endothelial dysfunction and vascular smooth muscle cell phenotypic switching, and activation of ERK1/2 signaling. The weight of evidence supports a role for inflammation in exacerbating the severity of TAA progression, expanding our understanding of the pathogenesis of TAA, identifying potential biomarkers for early detection of TAA, monitoring severity and progression, and for defining potential novel therapeutic targets.
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Affiliation(s)
- Cassandra Malecki
- Discipline of Pathology and Charles Perkins Centre, The University of Sydney, Sydney, NSW 2006, Australia; (B.D.H.); (R.W.J.); (E.N.R.)
- Correspondence:
| | - Brett D. Hambly
- Discipline of Pathology and Charles Perkins Centre, The University of Sydney, Sydney, NSW 2006, Australia; (B.D.H.); (R.W.J.); (E.N.R.)
| | - Richmond W. Jeremy
- Discipline of Pathology and Charles Perkins Centre, The University of Sydney, Sydney, NSW 2006, Australia; (B.D.H.); (R.W.J.); (E.N.R.)
- Cardiology Department, Royal Prince Alfred Hospital, Sydney, NSW 2050, Australia
| | - Elizabeth N. Robertson
- Discipline of Pathology and Charles Perkins Centre, The University of Sydney, Sydney, NSW 2006, Australia; (B.D.H.); (R.W.J.); (E.N.R.)
- Cardiology Department, Royal Prince Alfred Hospital, Sydney, NSW 2050, Australia
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Guo C, Davies MJ, Hawkins CL. Role of thiocyanate in the modulation of myeloperoxidase-derived oxidant induced damage to macrophages. Redox Biol 2020; 36:101666. [PMID: 32781424 PMCID: PMC7417949 DOI: 10.1016/j.redox.2020.101666] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Revised: 07/20/2020] [Accepted: 07/28/2020] [Indexed: 12/13/2022] Open
Abstract
Myeloperoxidase (MPO) is a vital component of the innate immune system, which produces the potent oxidant hypochlorous acid (HOCl) to kill invading pathogens. However, an overproduction of HOCl during chronic inflammatory conditions causes damage to host cells, which promotes disease, including atherosclerosis. As such, there is increasing interest in the use of thiocyanate (SCN-) therapeutically to decrease inflammatory disease, as SCN- is the favoured substrate for MPO, and a potent competitive inhibitor of HOCl formation. Use of SCN- by MPO forms hypothiocyanous acid (HOSCN), which can be less damaging to mammalian cells. In this study, we examined the ability of SCN- to modulate damage to macrophages induced by HOCl, which is relevant to lesion formation in atherosclerosis. Addition of SCN- prevented HOCl-mediated cell death, altered the extent and nature of thiol oxidation and the phosphorylation of mitogen activated protein kinases. These changes were dependent on the concentration of SCN- and were observed in some cases, at a sub-stoichiometric ratio of SCN-: HOCl. Co-treatment with SCN- also modulated HOCl-induced perturbations in the expression of various antioxidant and inflammatory genes. In general, the data reflect the conversion of HOCl to HOSCN, which can induce reversible modifications that are repairable by cells. However, our data also highlight the ability of HOSCN to increase pro-inflammatory gene expression and cytokine/chemokine release, which may be relevant to the use of SCN- therapeutically in atherosclerosis. Overall, this study provides further insight into the cellular pathways by which SCN- could exert protective effects on supplementation to decrease the development of chronic inflammatory diseases, such as atherosclerosis.
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Affiliation(s)
- Chaorui Guo
- Department of Biomedical Sciences, University of Copenhagen, Panum, Blegdamsvej 3B, Copenhagen, DK-2200, Denmark
| | - Michael J Davies
- Department of Biomedical Sciences, University of Copenhagen, Panum, Blegdamsvej 3B, Copenhagen, DK-2200, Denmark
| | - Clare L Hawkins
- Department of Biomedical Sciences, University of Copenhagen, Panum, Blegdamsvej 3B, Copenhagen, DK-2200, Denmark.
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11
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Nagala M, Crocker PR. Towards understanding the cell surface phenotype, metabolic properties and immune functions of resident macrophages of the peritoneal cavity and splenic red pulp using high resolution quantitative proteomics. Wellcome Open Res 2020. [DOI: 10.12688/wellcomeopenres.16061.1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Background:Resident macrophages (Mϕs) are distributed throughout the body and are important for maintaining tissue homeostasis and for defence against infections. Tissue Mϕs are highly adapted to their microenvironment and thought to mediate tissue-specific functions involving metabolism and immune defence that are not fully elucidated. Methods:We have used high resolution quantitative proteomics to gain insights into the functions of two types of resident tissue Mϕs: peritoneal cavity Mϕs and splenic red pulp Mϕs. The cellular expression levels of many proteins were validated by flow cytometry and were consistently in agreement with the proteomics data.Results:Peritoneal and splenic red pulp macrophages displayed major differences in cell surface phenotype reflecting their adaptation to different tissue microenvironments and tissue-specific functions. Peritoneal Mϕs were shown to be enriched in a number of key enzymes and metabolic pathways normally associated with the liver, such as metabolism of fructose, detoxification, nitrogen homeostasis and the urea cycle. Supporting these observations, we show that peritoneal Mϕs are able to utilise glutamine and glutamate which are rich in peritoneum for urea generation. In comparison, splenic red pulp Mϕs were enriched in proteins important for adaptive immunity such as antigen presenting MHC molecules, in addition to proteins required for erythrocyte homeostasis and iron turnover. We also show that these tissue Mϕs may utilise carbon and nitrogen substrates for different metabolic fates to support distinct tissue-specific roles.Conclusions:This study provides new insights into the functions of tissue Mϕs in immunity and homeostasis. The comprehensive proteomics data sets are a valuable resource for biologists and immunologists.
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12
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Panasenko OM, Torkhovskaya TI, Gorudko IV, Sokolov AV. The Role of Halogenative Stress in Atherogenic Modification of Low-Density Lipoproteins. BIOCHEMISTRY (MOSCOW) 2020; 85:S34-S55. [PMID: 32087053 DOI: 10.1134/s0006297920140035] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
This review discusses formation of reactive halogen species (RHS) catalyzed by myeloperoxidase (MPO), an enzyme mostly present in leukocytes. An imbalance between the RHS production and body's ability to remove or neutralize them leads to the development of halogenative stress. RHS reactions with proteins, lipids, carbohydrates, and antioxidants in the content of low-density lipoproteins (LDLs) of the human blood are described. MPO binds site-specifically to the LDL surface and modifies LDL properties and structural organization, which leads to the LDL conversion into proatherogenic forms captured by monocytes/macrophages, which causes accumulation of cholesterol and its esters in these cells and their transformation into foam cells, the basis of atherosclerotic plaques. The review describes the biomarkers of MPO enzymatic activity and halogenative stress, as well as the involvement of the latter in the development of atherosclerosis.
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Affiliation(s)
- O M Panasenko
- Federal Research and Clinical Center of Physico-Chemical Medicine, Federal Medical Biological Agency, Moscow, 119435, Russia.
| | - T I Torkhovskaya
- Federal Research and Clinical Center of Physico-Chemical Medicine, Federal Medical Biological Agency, Moscow, 119435, Russia.,Orekhovich Institute of Biomedical Chemistry, Moscow, 119121, Russia
| | - I V Gorudko
- Belarusian State University, Minsk, 220030, Belarus
| | - A V Sokolov
- Federal Research and Clinical Center of Physico-Chemical Medicine, Federal Medical Biological Agency, Moscow, 119435, Russia. .,Institute of Experimental Medicine, St. Petersburg, 197376, Russia
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13
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Wang C, Pulli B, Jalali Motlagh N, Li A, Wojtkiewicz GR, Schmidt SP, Wu Y, Zeller MW, Chen JW. A versatile imaging platform with fluorescence and CT imaging capabilities that detects myeloperoxidase activity and inflammation at different scales. Am J Cancer Res 2019; 9:7525-7536. [PMID: 31695784 PMCID: PMC6831463 DOI: 10.7150/thno.36264] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2019] [Accepted: 08/29/2019] [Indexed: 12/23/2022] Open
Abstract
Aberrant innate immune response drives the pathophysiology of many diseases. Myeloperoxidase (MPO) is a highly oxidative enzyme secreted by activated myeloid pro-inflammatory immune cells such as neutrophils and macrophages, and is a key mediator of the damaging innate immune response. Current technologies for detecting MPO activity in living organisms are sparse and suffer from any combination of low specificity, low tissue penetration, or low spatial resolution. We describe a versatile imaging platform to detect MPO activity using an activatable construct conjugated to a biotin moiety (MPO-activatable biotinylated sensor, MABS) that allows monitoring the innate immune response and its modulation at different scales and settings. Methods:We designed and synthesized MABS that contains MPO-specific and biotin moieties, and validated its specificity and sensitivity combining with streptavidin-labeled fluorescent agent and gold nanoparticles imaging in vitro and in vivo in multiple mouse models of inflammation and infection, including Matrigel implant, dermatitis, cellulitis, cerebritis and complete Fraud's adjuvant (CFA)-induced inflammation. Results: MABS MPO imaging non-invasively detected varying MPO concentrations, MPO inhibition, and MPO deficiency in vivo with high sensitivity and specificity. MABS can be used to obtain not only a fluorescence imaging agent, but also a CT imaging agent, conferring molecular activity information to a structural imaging modality. Importantly, using this method on tissue-sections, we found that MPO enzymatic activity does not always co-localize with MPO protein detected with conventional techniques (e.g., immunohistochemistry), underscoring the importance of monitoring enzymatic activity. Conclusion:By choosing from different available secondary probes, MABS can be used to create systems suitable to investigate and image MPO activity at different scales and settings.
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14
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Ollikainen E, Tulamo R, Lehti S, Hernesniemi J, Niemelä M, Kovanen PT, Frösen J. Myeloperoxidase Associates With Degenerative Remodeling and Rupture of the Saccular Intracranial Aneurysm Wall. J Neuropathol Exp Neurol 2019; 77:461-468. [PMID: 29718300 DOI: 10.1093/jnen/nly028] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Rupture of a saccular intracranial aneurysm (sIA) is often fatal. Thus, early detection of rupture-prone sIAs is vital. Myeloperoxidase (MPO), derived mainly from neutrophils, associates with sIA rupture, and therefore its role in sIA pathogenesis warrants further studies. We analyzed MPO and its association with other histological markers in 36 (16 unruptured and 20 ruptured) sIA samples by immunohistochemistry. MPO was present in all studied sIAs, and its expression associated with wall inflammatory cell infiltrations (r = 0.50, 0.63, and 0.75, all p ≤ 0.002), degenerative remodeling (p = 0.002) and rupture (p = 0.003). MPO associated strongly with the presence of organized luminal thrombi (p < 0.001), which also stained positive for MPO. Polymorphonuclear MPO+ cells were detected in the sIA walls, indicating neutrophils as MPO-source. MPO correlated strongly with accumulation of oxidized lipids (r = 0.67, p < 0.001) and loss of smooth muscle cells (r = -0.68, p < 0.001), suggesting that MPO is a relevant source of oxidative stress leading to cell death in the sIA wall. Furthermore, MPO associated with erythrocyte fragmentation (r = 0.74, p < 0.001) and iron deposition (p = 0.041), 2 outcomes known to amplify MPO-dependent oxidative stress. Taken together, these results suggest that MPO associates with degenerative remodeling predisposing to sIA wall rupture and may serve as a biomarker of a rupture-prone sIA wall.
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Affiliation(s)
- Eliisa Ollikainen
- Neurosurgery Research Group, Biomedicum, Helsinki, Finland.,Wihuri Research Institute, Biomedicum, Helsinki, Finland
| | - Riikka Tulamo
- Neurosurgery Research Group, Biomedicum, Helsinki, Finland.,Department of Vascular Surgery, University of Helsinki and Helsinki University Hospital, Finland
| | - Satu Lehti
- Wihuri Research Institute, Biomedicum, Helsinki, Finland
| | - Juha Hernesniemi
- Neurosurgery Research Group, Biomedicum, Helsinki, Finland.,Department of Neurosurgery, University of Helsinki and Helsinki University Hospital, Helsinki, Finland.,Department of Neurosurgery, Henan Province People's Hospital, Zhengzhou, China
| | - Mika Niemelä
- Neurosurgery Research Group, Biomedicum, Helsinki, Finland.,Department of Neurosurgery, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | | | - Juhana Frösen
- Neurosurgery Research Group, Biomedicum, Helsinki, Finland.,Department of Neurosurgery, Kuopio, Finland.,Hemorrhagic Brain Pathology Research Group, Kuopio University Hospital, Kuopio, Finland
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15
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Streja E, Streja DA, Soohoo M, Kleine CE, Hsiung JT, Park C, Moradi H. Precision Medicine and Personalized Management of Lipoprotein and Lipid Disorders in Chronic and End-Stage Kidney Disease. Semin Nephrol 2019; 38:369-382. [PMID: 30082057 DOI: 10.1016/j.semnephrol.2018.05.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Precision medicine is an emerging field that calls for individualization of treatment strategies based on characteristics unique to each patient. In lipid management, current guidelines are driven mainly by clinical trial results that presently indicate that patients with non-dialysis-dependent chronic kidney disease (CKD) should be treated with a β-hydroxy β-methylglutaryl-CoA reductase inhibitor, also known as statin therapy. For patients with end-stage kidney disease (ESKD) being treated with hemodialysis, statin therapy has not been shown to successfully reduce poor outcomes in trials and therefore is not recommended. The two major guidelines dissent on whether statin therapy should be of moderate or high intensity in non-dialysis-dependent CKD patients, but often leave the prescribing clinician to make that decision. These decisions often are complicated by the increased concerns for adverse events such as myopathies in patients with advanced kidney disease and ESKD. In the future, there may be an opportunity to further identify CKD and ESKD patients who are more likely to benefit from lipid-modifying therapy as opposed to those who likely will suffer from its side effects using precision medicine tools. For now, data from genetics studies and subgroup analyses may provide insight for future research directions in this field and we review some of the work that has been published in this regard.
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Affiliation(s)
- Elani Streja
- Harold Simmons Center for Kidney Disease Research and Epidemiology, Division of Nephrology and Hypertension, University of California Irvine Medical Center, Orange, CA.; Nephrology Section, Tibor Rubin Veterans Affairs Medical Center, Long Beach, CA..
| | - Dan A Streja
- Division of Endocrinology, Diabetes and Metabolism, West Los Angeles VA Medical Center, Greater Los Angeles VA Healthcare System, Los Angeles, CA
| | - Melissa Soohoo
- Harold Simmons Center for Kidney Disease Research and Epidemiology, Division of Nephrology and Hypertension, University of California Irvine Medical Center, Orange, CA.; Nephrology Section, Tibor Rubin Veterans Affairs Medical Center, Long Beach, CA
| | - Carola-Ellen Kleine
- Harold Simmons Center for Kidney Disease Research and Epidemiology, Division of Nephrology and Hypertension, University of California Irvine Medical Center, Orange, CA.; Nephrology Section, Tibor Rubin Veterans Affairs Medical Center, Long Beach, CA
| | - Jui-Ting Hsiung
- Harold Simmons Center for Kidney Disease Research and Epidemiology, Division of Nephrology and Hypertension, University of California Irvine Medical Center, Orange, CA.; Nephrology Section, Tibor Rubin Veterans Affairs Medical Center, Long Beach, CA
| | - Christina Park
- Harold Simmons Center for Kidney Disease Research and Epidemiology, Division of Nephrology and Hypertension, University of California Irvine Medical Center, Orange, CA.; Nephrology Section, Tibor Rubin Veterans Affairs Medical Center, Long Beach, CA
| | - Hamid Moradi
- Harold Simmons Center for Kidney Disease Research and Epidemiology, Division of Nephrology and Hypertension, University of California Irvine Medical Center, Orange, CA.; Nephrology Section, Tibor Rubin Veterans Affairs Medical Center, Long Beach, CA
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16
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Kim KS, Song CG, Kang PM. Targeting Oxidative Stress Using Nanoparticles as a Theranostic Strategy for Cardiovascular Diseases. Antioxid Redox Signal 2019; 30:733-746. [PMID: 29228781 PMCID: PMC6350062 DOI: 10.1089/ars.2017.7428] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
SIGNIFICANCE Nanomedicine is an application of nanotechnology that provides solutions to unmet medical challenges. The unique features of nanoparticles, such as their small size, modifiable components, and diverse functionality, make them attractive and suitable materials for novel diagnostic, therapeutic, or theranostic applications. Cardiovascular diseases (CVDs) are the major cause of noncommunicable illness in both developing and developed countries. Nanomedicine offers novel theranostic options for the treatment of CVDs. Recent Advances: Many innovative nanoparticles to target reactive oxygen species (ROS) have been developed. In this article, we review the characteristics of nanoparticles that are responsive to ROS, their limitations, and their potential clinical uses. Significant advances made in diagnosis of atherosclerosis and treatment of acute coronary syndrome using nanoparticles are discussed. CRITICAL ISSUES Although there is a tremendous potential for the nanoparticle applications in medicine, their safety should be considered while using in humans. We discuss the challenges that may be encountered with some of the innovative nanoparticles used in CVDs. FUTURE DIRECTIONS The unique properties of nanoparticles offer novel diagnostic tool and potential therapeutic strategies. However, nanomedicine is still in its infancy, and further in-depth studies are needed before wide clinical application is achieved.
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Affiliation(s)
- Kye S Kim
- 1 Cardiovascular Institute, Beth Israel Deaconess Medical Center, Boston, Massachusetts.,2 Harvard Medical School, Boston, Massachusetts
| | - Chul Gyu Song
- 3 Department of Electronic Engineering, Chonbuk National University, Jeonju, South Korea
| | - Peter M Kang
- 1 Cardiovascular Institute, Beth Israel Deaconess Medical Center, Boston, Massachusetts.,2 Harvard Medical School, Boston, Massachusetts
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17
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Meng Q, Wu S, Wang Y, Xu J, Sun H, Lu R, Gao N, Yang H, Li X, Tang B, Aschner M, Chen R. MPO Promoter Polymorphism rs2333227 Enhances Malignant Phenotypes of Colorectal Cancer by Altering the Binding Affinity of AP-2α. Cancer Res 2018. [PMID: 29540402 DOI: 10.1158/0008-5472.can-17-2538] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Myeloperoxidase (MPO) promoter SNPs rs2243828 (-764T>C) and rs2333227 (G-463A) program malignant phenotypes by regulating MPO transcriptional activity. In this study, we enrolled a total of 1,175 controls and 1,078 patients with colorectal cancer with comprehensive clinical and survival information to assess whether these SNPs could affect the susceptibility and development of colorectal cancer. The MPO rs2333227 TT genotype significantly increased the risk of colorectal cancer and decreased the overall survival time of patients. Colorectal cancer cells with the rs2333227 TT genotype exhibited enhanced proliferation, migration, and invasion capacity in vitro and in vivo Mechanistically, we found that MPO SNP rs2333227 C to T mutation altered the binding affinity of the transcription factors AP-2α to the rs2333227 mutation region, sequentially enhancing expression levels of MPO and activating further IL23A-MMP9 axis-mediated oncogenic signaling. Taken together, our findings indicate that MPO SNP rs2333227 serves as a marker of enhanced risk for development of colorectal cancer.Significance: MPO polymorphisms are a guide for high risk and poor prognosis in patients colorectal cancer. Cancer Res; 78(10); 2760-9. ©2018 AACR.
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Affiliation(s)
- Qingtao Meng
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, China
| | - Shenshen Wu
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, China
| | - Yajie Wang
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, China
| | - Jin Xu
- Department of Maternal, Child and Adolescent Health, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Hao Sun
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, China
| | - Runze Lu
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, China
| | - Na Gao
- Institute of Bioinformatics, Heinrich Heine University, Düsseldorf, Germany
| | - Hongbao Yang
- Center for New Drug Safety Evaluation and Research, China Pharmaceutical University, Nanjing, China
| | - Xiaobo Li
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, China
| | - Boping Tang
- Jiangsu Key Laboratory for Bioresources of Saline Soils, Jiangsu Synthetic Innovation Center for Coastal Bioagriculture, Yancheng Teachers University, Yancheng, China
| | - Michael Aschner
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, Bronx, New York
| | - Rui Chen
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, China. .,Institute for Chemical Carcinogenesis, Guangzhou Medical University, Guangzhou, China
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18
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Dietary intervention with green dwarf banana flour ( Musa sp. AAA) modulates oxidative stress and colonic SCFAs production in the TNBS model of intestinal inflammation. J Funct Foods 2017. [DOI: 10.1016/j.jff.2017.09.038] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
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19
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Cheng HS, Ton SH, Tan JBL, Abdul Kadir K. The Ameliorative Effects of a Tocotrienol-Rich Fraction on the AGE-RAGE Axis and Hypertension in High-Fat-Diet-Fed Rats with Metabolic Syndrome. Nutrients 2017; 9:nu9090984. [PMID: 28880217 PMCID: PMC5622744 DOI: 10.3390/nu9090984] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2017] [Revised: 09/01/2017] [Accepted: 09/01/2017] [Indexed: 02/02/2023] Open
Abstract
The clinical value of tocotrienols is increasingly appreciated because of the unique therapeutic effects that are not shared by tocopherols. However, their effect on metabolic syndrome is not well-established. This study aimed to investigate the effects of a tocotrienol-rich fraction (TRF) from palm oil in high-fat-diet-treated rats. Male, post-weaning Sprague Dawley rats were provided high-fat (60% kcal) diet for eight weeks followed by a TRF (60 mg/kg) treatment for another four weeks. Physical, metabolic, and histological changes were compared to those on control and high-fat diets respectively. High-fat feeding for eight weeks induced all hallmarks of metabolic syndrome. The TRF reversed systolic and diastolic hypertension, hypercholesterolemia, hepatic steatosis, impaired antioxidant defense, and myeloperoxidase hyperactivity triggered by the high-fat diet. It also conferred an inhibitory effect on protein glycation to reduce glycated hemoglobin A1c and advanced glycation end products (AGE). This was accompanied by the suppression of the receptor for advanced glycation end product (RAGE) expression in the liver. The treatment effects on visceral adiposity, glycemic control, triglyceride level, as well as peroxisome proliferator-activated receptor α and γ expression were negligible. To conclude, treatment with a TRF exhibited protective effects on the cardiovascular and liver health in addition to the amelioration of plasma redox imbalance and AGE-RAGE activation. Further investigation as a therapy for metabolic syndrome is therefore worthwhile.
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Affiliation(s)
- Hong Sheng Cheng
- School of Science, Monash University Malaysia, Bandar Sunway, Selangor 46150, Malaysia.
| | - So Ha Ton
- School of Science, Monash University Malaysia, Bandar Sunway, Selangor 46150, Malaysia.
| | - Joash Ban Lee Tan
- School of Science, Monash University Malaysia, Bandar Sunway, Selangor 46150, Malaysia.
| | - Khalid Abdul Kadir
- School of Medicine and Health Sciences, Monash University Malaysia, Bandar Sunway, Selangor 46150, Malaysia.
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20
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Myeloperoxidase is not a good biomarker for preeclampsia prediction. Sci Rep 2017; 7:10257. [PMID: 28860607 PMCID: PMC5579011 DOI: 10.1038/s41598-017-09272-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2017] [Accepted: 07/05/2017] [Indexed: 01/23/2023] Open
Abstract
Myeloperoxidase is a proinflammatory enzyme found to be increased in patients with established preeclampsia but never investigated before the disease onset. Here we examined myeloperoxidase concentration and activity in plasma and urine samples from pregnant women who remained normotensive throughout pregnancy and those who developed preeclampsia in order to assess its potential to predict this disorder. Our sample consisted of 30 cases who developed preeclampsia (14 severe and 16 mild) and 57 controls who remained healthy throughout pregnancy, derived from the Brazilian Ribeirão Preto and São Luís prenatal cohort (BRISA). Myeloperoxidase concentration were assessed using a commercial ELISA kit and enzymatic activity through tetramethylbenzidine oxidation. No statistical differences were found in myeloperoxidase levels nor activity between plasma or urine samples from controls, severe and mild cases. Myeloperoxidase did not seem to have a potential application for preeclampsia prediction.
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21
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Almeida Junior LD, Quaglio AEV, de Almeida Costa CAR, Di Stasi LC. Intestinal anti-inflammatory activity of Ground Cherry ( Physalis angulata L.) standardized CO 2 phytopharmaceutical preparation. World J Gastroenterol 2017; 23:4369-4380. [PMID: 28706419 PMCID: PMC5487500 DOI: 10.3748/wjg.v23.i24.4369] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/13/2016] [Revised: 02/25/2017] [Accepted: 04/12/2017] [Indexed: 02/06/2023] Open
Abstract
AIM To investigate the effects of Ground Cherry (Physalis angulata L.) standardized supercritical CO2 extract in trinitrobenzenesulphonic acid (TNBS) model of rat intestinal inflammation.
METHODS The animals were divided into groups that received vehicle or P. angulata extract (PACO2) orally at the doses 25, 50 and 100 mg/kg daily by 5 d before TNBS damage. Protective effects of PACO2 were assessed by macroscopic analysis, biochemical determinations of the levels of myeloperoxidase (MPO), alkaline phosphatase (ALP), glutathione and cytokines (such as INF-γ, IL-1β, IL-6, IL-10 and TNF-α), gene expression evaluation (including Hsp70, heparanase, NF-κB, mitogen-activated protein kinases (Mapk) 1, 3, 6 and 9, and the mucins genes Muc 1, 2, 3 and 4) and histopathological studies using optical, and electronic (transmission and scanning) microscopy.
RESULTS PACO2 extract promoted a significant reduction in MPO and ALP activities, reducing oxidative stress and neutrophil infiltration. These effects were accompanied by significant reduction of colonic levels of IFN-γ and IL-6 and down-regulation of heparanase, Hsp70, Mapk3, Mapk9, Muc1 and Muc2 genes expression when compared with TNBS-control animals. In addition, protective effects were also evidenced by reduced neutrophil infiltration, recovery of cell architecture and replacement of mucin by histopathological and ultrastructural analysis.
CONCLUSION Physalis angulata supercritical CO2 extract is an intestinal anti-inflammatory product that modulates oxidative stress, immune response and expression of inflammatory mediators, with potentially utility for treating inflammatory bowel disease.
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22
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Da Silva AR, Lenglet S, Carbone F, Burger F, Roth A, Liberale L, Bonaventura A, Dallegri F, Stergiopulos N, Santos RAS, Mach F, Fraga-Silva RA, Montecucco F. Alamandine abrogates neutrophil degranulation in atherosclerotic mice. Eur J Clin Invest 2017; 47:117-128. [PMID: 27930810 DOI: 10.1111/eci.12708] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/12/2016] [Accepted: 12/01/2016] [Indexed: 12/20/2022]
Abstract
BACKGROUND Neutrophil-mediated inflammation was recently identified as an active contributor to athero-progression. Therapeutic strategies inhibiting neutrophil degranulation or recruitment were hypothesized to positively impact on plaque vulnerability. In this study, we investigated whether treatment with the recently discovered agonist of the Mas-related G-coupled receptor type D (MrgD) alamandine would impact on neutrophil degranulation in vivo and in vitro. MATERIALS AND METHODS Fifteen-week-old ApoE-/- mice were fed with a Western-type diet for an additional 11 weeks. After the first 2 weeks of diet, mice were surgically implanted with a carotid 'cast' device that alters the blood shear stress and induces different carotid plaque phenotypes. During the last 4 weeks before euthanasia, mice were randomly assigned to subcutaneously receive vehicle (NaCl 0·15 M) or alamandine (24 μg/kg/h) by micropump. For in vitro experiments, neutrophils were obtained after thioglycollate intraperitoneal injection in ApoE-/- mice. RESULTS Treatment with alamandine was well-tolerated, but failed to affect lipid, macrophage, neutrophil or collagen content within carotid and aortic root plaques. Also, treatment with alamandine did not affect Th-cell polarization in lymphoid organs. Conversely, alamandine administration was associated with a reduction in serum levels of neutrophil granule enzymes, such as MMP-9 and MPO as well as MMP-9 content within aortic root plaques. In vitro, preincubation with alamandine dose-dependently abrogated PMA-induced neutrophil degranulation of MMP-9 and MPO. CONCLUSION These results suggest that treatment with the MrgD agonist alamandine led to a reduced release of neutrophil granule products, potentially interfering with pro-atherosclerotic neutrophil activation.
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Affiliation(s)
- Analina R Da Silva
- Division of Cardiology, Department of Medical Specialties, Foundation for Medical Researches, University of Geneva, Geneva, Switzerland
| | - Sébastien Lenglet
- Division of Cardiology, Department of Medical Specialties, Foundation for Medical Researches, University of Geneva, Geneva, Switzerland
| | - Federico Carbone
- First Clinic of Internal Medicine, Department of Internal Medicine, University of Genoa School of Medicine, Genoa, Italy
| | - Fabienne Burger
- Division of Cardiology, Department of Medical Specialties, Foundation for Medical Researches, University of Geneva, Geneva, Switzerland
| | - Aline Roth
- Division of Cardiology, Department of Medical Specialties, Foundation for Medical Researches, University of Geneva, Geneva, Switzerland
| | - Luca Liberale
- First Clinic of Internal Medicine, Department of Internal Medicine, University of Genoa School of Medicine, Genoa, Italy
| | - Aldo Bonaventura
- First Clinic of Internal Medicine, Department of Internal Medicine, University of Genoa School of Medicine, Genoa, Italy
| | - Franco Dallegri
- First Clinic of Internal Medicine, Department of Internal Medicine, University of Genoa School of Medicine, Genoa, Italy.,IRCCS AOU San Martino - IST, Genoa, Italy
| | - Nikolaos Stergiopulos
- Institute of Bioengineering, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland
| | - Robson A S Santos
- Department of Physiology and Biophysics, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - François Mach
- Division of Cardiology, Department of Medical Specialties, Foundation for Medical Researches, University of Geneva, Geneva, Switzerland
| | - Rodrigo A Fraga-Silva
- Institute of Bioengineering, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland
| | - Fabrizio Montecucco
- First Clinic of Internal Medicine, Department of Internal Medicine, University of Genoa School of Medicine, Genoa, Italy.,IRCCS AOU San Martino - IST, Genoa, Italy.,Centre of Excellence for Biomedical Research (CEBR), University of Genoa, Genoa, Italy
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Mahasneh AA, Zhang Y, Zhao H, Ambrosone CB, Hong CC. Lifestyle predictors of oxidant and antioxidant enzyme activities and total antioxidant capacity in healthy women: a cross-sectional study. J Physiol Biochem 2016; 72:745-762. [DOI: 10.1007/s13105-016-0513-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2015] [Accepted: 08/02/2016] [Indexed: 01/01/2023]
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Amantea D, Certo M, Petrelli F, Bagetta G. Neuroprotective Properties of a Macrolide Antibiotic in a Mouse Model of Middle Cerebral Artery Occlusion: Characterization of the Immunomodulatory Effects and Validation of the Efficacy of Intravenous Administration. Assay Drug Dev Technol 2016; 14:298-307. [PMID: 27392039 DOI: 10.1089/adt.2016.728] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
Repurposing the macrolide antibiotic azithromycin has recently been suggested as a promising neuroprotective strategy for the acute treatment of ischemic stroke. Here, we aim at further characterizing the immunomodulatory properties of intraperitoneal (i.p.) administration of this drug and, more importantly, at assessing whether neuroprotection can also be achieved by the more clinically relevant intravenous (i.v.) route of administration in a mouse model of focal cerebral ischemia induced by transient (30-min) middle cerebral artery occlusion (MCAo). A single i.p. injection of azithromycin (150 mg/kg) upon reperfusion prevented ischemia-induced spleen contraction and increased the number of MAC-1-immunopositive microglia/macrophages in the ischemic hemisphere 48 h after the insult. This was paralleled by an elevation of alternatively activated phenotypes (i.e., Ym1-immunopositive M2-polarized cells) and by a reduced expression of the pro-inflammatory marker myeloperoxidase. More importantly, i.v. administration of azithromycin upon reperfusion reduced MCAo-induced infarct volume and cerebral edema to an extent comparable to that obtained via the i.p. route. Although the i.p. route is often used for research purposes, it is impractical in the clinical setting; however, i.v. administration can easily be used in ischemic stroke patients who usually have i.v. access already established on hospital admission. The neuroprotective efficacy of the clinically relevant i.v. administration of azithromycin, together with its beneficial immunomodulatory properties reported in mice subjected to transient MCAo, suggests that this macrolide antibiotic can be effectively repurposed for the acute treatment of ischemic stroke. To this end, further work is needed to validate the efficacy of azithromycin in the clinical setting.
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Affiliation(s)
- Diana Amantea
- 1 Section of Preclinical and Translational Pharmacology, Department of Pharmacy, Health and Nutritional Sciences, University of Calabria , Rende (CS), Italy
| | - Michelangelo Certo
- 1 Section of Preclinical and Translational Pharmacology, Department of Pharmacy, Health and Nutritional Sciences, University of Calabria , Rende (CS), Italy
| | - Francesco Petrelli
- 1 Section of Preclinical and Translational Pharmacology, Department of Pharmacy, Health and Nutritional Sciences, University of Calabria , Rende (CS), Italy
| | - Giacinto Bagetta
- 1 Section of Preclinical and Translational Pharmacology, Department of Pharmacy, Health and Nutritional Sciences, University of Calabria , Rende (CS), Italy .,2 University Consortium for Adaptive Disorders and Head Pain (UCADH), Section of Neuropharmacology of Normal and Pathological Neuronal Plasticity, University of Calabria , Rende, Italy
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Ray RS, Katyal A. Myeloperoxidase: Bridging the gap in neurodegeneration. Neurosci Biobehav Rev 2016; 68:611-620. [PMID: 27343997 DOI: 10.1016/j.neubiorev.2016.06.031] [Citation(s) in RCA: 65] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2016] [Revised: 06/20/2016] [Accepted: 06/21/2016] [Indexed: 10/21/2022]
Abstract
Neurodegenerative conditions present a group of complex disease pathologies mostly due to unknown aetiology resulting in neuronal death and permanent neurological disability. Any undesirable stress to the brain, disrupts homeostatic balance, through a remarkable convergence of pathophysiological changes and immune dysregulation. The crosstalk between inflammatory and oxidative mechanisms results in the release of neurotoxic mediators apparently spearheaded by myeloperoxidase derived from activated microglia, astrocytes, neurons as well as peripheral inflammatory cells. These isolated entities combinedly have the potential to flare up and contribute significantly to neuropathology and disease progression. Recent, clinicopathological evidence support the association of myeloperoxidase and its cytotoxic product, hypochlorous acid in a plethora of neurodegenerative diseases including Alzheimer's disease, Parkinson's disease, Amyotrophic lateral sclerosis, Multiple sclerosis, Stroke, Epilepsy etc. But the biochemical and mechanistic insights into myeloperoxidase mediated neuroinflammation and neuronal death is still an uncharted territory. The current review outlines the emerging recognition of myeloperoxidase in neurodegeneration, which may offer novel therapeutic and diagnostic targets for neurodegenerative disorders.
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Affiliation(s)
- R S Ray
- Dr. B.R. Ambedkar Center for Biomedical Research (ACBR), University of Delhi, North Campus, Delhi 110 007, India.
| | - Anju Katyal
- Dr. B.R. Ambedkar Center for Biomedical Research (ACBR), University of Delhi, North Campus, Delhi 110 007, India.
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26
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Yang J, Liu XX, Fan H, Tang Q, Shou ZX, Zuo DM, Zou Z, Xu M, Chen QY, Peng Y, Deng SJ, Liu YJ. Extracellular Vesicles Derived from Bone Marrow Mesenchymal Stem Cells Protect against Experimental Colitis via Attenuating Colon Inflammation, Oxidative Stress and Apoptosis. PLoS One 2015; 10:e0140551. [PMID: 26469068 PMCID: PMC4607447 DOI: 10.1371/journal.pone.0140551] [Citation(s) in RCA: 160] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2015] [Accepted: 09/28/2015] [Indexed: 12/15/2022] Open
Abstract
The administration of bone mesenchymal stem cells (BMSCs) could reverse experimental colitis, and the predominant mechanism in tissue repair seems to be related to their paracrine activity. BMSCs derived extracellular vesicles (BMSC-EVs), including mcirovesicles and exosomes, containing diverse proteins, mRNAs and micro-RNAs, mediating various biological functions, might be a main paracrine mechanism for stem cell to injured cell communication. We aimed to investigate the potential alleviating effects of BMSC-EVs in 2,4,6-trinitrobenzene sulfonic acid (TNBS)-induced colitis model. Intravenous injection of BMSC-EVs attenuated the severity of colitis as evidenced by decrease of disease activity index (DAI) and histological colonic damage. In inflammation response, the BMSC-EVs treatment significantly reduced both the mRNA and protein levels of nuclear factor kappaBp65 (NF-κBp65), tumor necrosis factor-alpha (TNF-α), induciblenitric oxidesynthase (iNOS) and cyclooxygenase-2 (COX-2) in injured colon. Additionally, the BMSC-EVs injection resulted in a markedly decrease in interleukin-1β (IL-1β) and an increase in interleukin-10 (IL-10) expression. Therapeutic effect of BMSC-EVs associated with suppression of oxidative perturbations was manifested by a decrease in the activity of myeloperoxidase (MPO) and Malondialdehyde (MDA), as well as an increase in superoxide dismutase (SOD) and glutathione (GSH). BMSC-EVs also suppressed the apoptosis via reducing the cleavage of caspase-3, caspase-8 and caspase-9 in colitis rats. Data obtained indicated that the beneficial effects of BMSC-EVs were due to the down regulation of pro-inflammatory cytokines levels, inhibition of NF-κBp65 signal transduction pathways, modulation of anti-oxidant/ oxidant balance, and moderation of the occurrence of apoptosis.
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Affiliation(s)
- Jia Yang
- Department of Integrated Traditional Chinese and Western Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xing-Xing Liu
- Department of Integrated Traditional Chinese and Western Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Heng Fan
- Department of Integrated Traditional Chinese and Western Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- * E-mail:
| | - Qing Tang
- Department of Integrated Traditional Chinese and Western Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zhe-Xing Shou
- Department of Integrated Traditional Chinese and Western Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Dong-Mei Zuo
- Department of Integrated Traditional Chinese and Western Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zhou Zou
- Department of Integrated Traditional Chinese and Western Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Meng Xu
- Department of Integrated Traditional Chinese and Western Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Qian-Yun Chen
- Department of Integrated Traditional Chinese and Western Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ying Peng
- Department of Integrated Traditional Chinese and Western Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Shuang-Jiao Deng
- Department of Integrated Traditional Chinese and Western Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yu-Jin Liu
- Department of Integrated Traditional Chinese and Western Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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Quaglio AEV, Castilho ACS, Di Stasi LC. Experimental evidence of heparanase, Hsp70 and NF-κB gene expression on the response of anti-inflammatory drugs in TNBS-induced colonic inflammation. Life Sci 2015; 141:179-87. [PMID: 26434698 DOI: 10.1016/j.lfs.2015.09.023] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2015] [Revised: 09/25/2015] [Accepted: 09/30/2015] [Indexed: 12/16/2022]
Abstract
AIM Etiopathogenesis of inflammatory bowel disease is unclear and results from a complex interplay of genetic, microbial, environmental and immune factors. Elucidating the mechanisms that drive IBD depends on the detailed characterization of human inflammatory mediators in animal models. Therefore, we studied how intestinal inflammation affects heparanase, NF-κB and Hsp70 gene expression in rats, and if current intestinal anti-inflammatory drugs (sulphasalazine, prednisolone and azathioprine) act on these expressions. Moreover, we investigated the relationships among these genes with colonic cytokines levels (IL-1β, TNF-α, IL-6, INF-γ and IL-10) and oxidative stress that have fundamental role in IBD. MATERIAL AND METHODS Macroscopic parameters (diarrhea, extension of lesion, colonic weight/length ratio and damage score), biochemical markers (myeloperoxidase and alkaline phosphatase activities, and glutathione, IL-1β, TNF-α, IL-6, INF-γ and IL-10 levels), gene expressions (heparanase, NF-κB and Hsp70), and microscopic evaluations (optic, electronic scanning and transmission microscopic) were performed in rats. KEY FINDINGS Expression of heparanase, Hsp70 and NF-κB and oxidative stress were increased by inflammatory process and differentially modulated by sulphasalazine, prednisolone and azathioprine treatments. Protective effects of drugs were also related to differential modulation of cytokine changes induced by inflammatory process, showing different mechanisms to control inflammation. SIGNIFICANCE Heparanase, NF-κB and Hsp70 gene expression participate in the inflammatory response induced by TNBS and represent pharmacological targets of the intestinal anti-inflammatory drugs. In addition, current drugs used to treat IBD (sulphasalazine, prednisolone and azathioprine) differentially modulate heparanase, NF-κB and Hsp70 gene expression, cytokine production and oxidative stress.
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Affiliation(s)
- Ana E V Quaglio
- Laboratory of Phytomedicines, Pharmacology and Biotechnology (PhytoPharmaTech), Department of Pharmacology, Institute of Biosciences, São Paulo State University - UNESP, Botucatu, São Paulo CEP 18618-000, Brazil
| | - Anthony C S Castilho
- Laboratory of Phytomedicines, Pharmacology and Biotechnology (PhytoPharmaTech), Department of Pharmacology, Institute of Biosciences, São Paulo State University - UNESP, Botucatu, São Paulo CEP 18618-000, Brazil
| | - Luiz C Di Stasi
- Laboratory of Phytomedicines, Pharmacology and Biotechnology (PhytoPharmaTech), Department of Pharmacology, Institute of Biosciences, São Paulo State University - UNESP, Botucatu, São Paulo CEP 18618-000, Brazil.
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Association of Plasma Myeloperoxidase Level with Risk of Coronary Artery Disease in Patients with Type 2 Diabetes. DISEASE MARKERS 2015; 2015:761939. [PMID: 26451069 PMCID: PMC4588338 DOI: 10.1155/2015/761939] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/16/2015] [Revised: 06/09/2015] [Accepted: 06/11/2015] [Indexed: 02/06/2023]
Abstract
Aims. This study aimed to investigate whether the change of plasma myeloperoxidase (MPO) level would be associated with the incidence of coronary artery disease (CAD) among diabetic patients. Methods. 339 patients with type 2 diabetes mellitus (DM) underwent coronary angiography. Of them, 204 cases had CAD and were assigned to CAD group and 135 cases without CAD were assigned to non-CAD group. Results. Compared to non-CAD group, CAD group had higher level of plasma MPO (p < 0.01). Multiple linear regression analysis showed that plasma MPO level was correlated with Gensini score. Multiple logistic analysis showed that the odds ratios for CAD across increasing tertiles of MPO level were 1.191 (0.971–1.547) and 1.488 (1.115–2.228) (p = 0.048, p = 0.009 versus 1st tertile of MPO level, resp.) by adjusting for age, sex, and other conventional risk factors for CAD. The subjects were stratified into nine groups according to tertiles of MPO and HbA1c. The odds ratio for CAD was significantly higher in group with highest levels of MPO and HbA1c (OR = 4.08, p < 0.01). Conclusion. Plasma MPO level was positively correlated with the degree of coronary artery stenosis in type 2 diabetic patients, and increasing blood glucose might amplify the association between MPO and CAD.
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Enhanced formation of neutrophil extracellular traps in patients with graft versus host disease. Ann Hematol 2015; 94:2081-3. [PMID: 26344600 DOI: 10.1007/s00277-015-2495-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2015] [Accepted: 09/01/2015] [Indexed: 10/23/2022]
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Quaglio AEV, Castilho ACS, Di Stasi LC. Experimental evidence of MAP kinase gene expression on the response of intestinal anti-inflammatory drugs. Life Sci 2015; 136:60-6. [PMID: 26141991 DOI: 10.1016/j.lfs.2015.06.012] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2014] [Revised: 05/13/2015] [Accepted: 06/04/2015] [Indexed: 12/20/2022]
Abstract
AIM The etiopathogenesis of inflammatory bowel disease (IBD) is unclear and further understanding of the mechanisms that regulate intestinal barrier integrity and function could give insight into its pathophysiology and mode of action of current drugs used to treat human IBD. Therefore, we investigated how intestinal inflammation affects Map kinase gene expression in rats, and if current intestinal anti-inflammatory drugs (sulphasalazine, prednisolone and azathioprine) act on these expressions. MATERIAL AND METHODS Macroscopic parameters of lesion, biochemical markers (myeloperoxidase, alkaline phosphatase and glutathione), gene expression of 13Map kinases, and histologic evaluations (optic, electronic scanning and transmission microscopy) were performed in rats with colonic inflammation induced by trinitrobenzenesulphonic (TNBS) acid. KEY FINDINGS The colonic inflammation was characterized by a significant increase in the expression of Mapk1, Mapk3 and Mapk9 accompanied by a significant reduction in the expression ofMapk6. Alterations inMapk expression induced by TNBS were differentially counteracted after treatment with sulphasalazine, prednisolone and azathioprine. Protective effects were also related to the significant reduction of oxidative stress, which was related to increase Mapk1/3 expressions, which were reduced after pharmacological treatment. SIGNIFICANCE Mapk1, Mapk3,Mapk6 and Mapk9 gene expressionswere affected by colonic inflammation induced by TNBS in rats and counteracted by sulphasalazine, prednisolone and azathioprine treatments, suggesting that these genes participate in the pharmacological response produced for these drugs.
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Affiliation(s)
- Ana Elisa Valencise Quaglio
- Laboratory of Phytomedicines, Pharmacology and Biotechnology (PhytoPharmaTech), Department of Pharmacology, Institute of Biosciences, São Paulo State University (UNESP), Botucatu, SP, Brazil
| | - Anthony Cesar Souza Castilho
- Laboratory of Phytomedicines, Pharmacology and Biotechnology (PhytoPharmaTech), Department of Pharmacology, Institute of Biosciences, São Paulo State University (UNESP), Botucatu, SP, Brazil
| | - Luiz Claudio Di Stasi
- Laboratory of Phytomedicines, Pharmacology and Biotechnology (PhytoPharmaTech), Department of Pharmacology, Institute of Biosciences, São Paulo State University (UNESP), Botucatu, SP, Brazil
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Rafikova O, Rafikov R, Meadows ML, Kangath A, Jonigk D, Black SM. The sexual dimorphism associated with pulmonary hypertension corresponds to a fibrotic phenotype. Pulm Circ 2015; 5:184-97. [PMID: 25992281 DOI: 10.1086/679724] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/28/2014] [Accepted: 08/18/2014] [Indexed: 01/23/2023] Open
Abstract
Although female predominance in the development of all types of pulmonary hypertension (PH) is well established, many clinical studies have confirmed that females have better prognosis and higher survival rate than males. There is no clear explanation of why sex influences the pathogenesis and progression of PH. Using a rat angioproliferative model of PH, which closely resembles the primary pathological changes observed in humans, we evaluated the role of sex in the development and progression of PH. Female rats had a more pronounced increase in medial thickness in the small pulmonary arteries. However, the infiltration of small pulmonary arteries by inflammatory cells was found only in male rats, and this corresponded to increased myeloperoxidase activity and abundant adventitial and medial fibrosis that were not present in female rats. Although the level of right ventricle (RV) peak systolic pressure was similar in both groups, the survival rate in male rats was significantly lower. Moreover, male rats presented with a more pronounced increase in RV thickness that correlated with diffuse RV fibrosis and significantly impaired right cardiac function. The reduction in fibrosis in female rats correlated with increased expression of caveolin-1 and reduced endothelial nitric oxide synthase-derived superoxide. We conclude that, in the pathogenesis of PH, female sex is associated with greater remodeling of the pulmonary arteries but greater survival. Conversely, in males, the development of pulmonary and cardiac fibrosis leads to early and severe RV failure, and this may be an important reason for the lower survival rate among males.
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Affiliation(s)
- Olga Rafikova
- Pulmonary Vascular Disease Program, Vascular Biology Center, Medical College of Georgia, Georgia Regents University, Augusta, Georgia, USA ; These authors contributed equally to this study
| | - Ruslan Rafikov
- Pulmonary Vascular Disease Program, Vascular Biology Center, Medical College of Georgia, Georgia Regents University, Augusta, Georgia, USA ; These authors contributed equally to this study
| | - Mary Louise Meadows
- Pulmonary Vascular Disease Program, Vascular Biology Center, Medical College of Georgia, Georgia Regents University, Augusta, Georgia, USA
| | - Archana Kangath
- Pulmonary Vascular Disease Program, Vascular Biology Center, Medical College of Georgia, Georgia Regents University, Augusta, Georgia, USA
| | - Danny Jonigk
- Institute of Pathology, Hannover Medical School, Hanover, Germany
| | - Stephen M Black
- Pulmonary Vascular Disease Program, Vascular Biology Center, Medical College of Georgia, Georgia Regents University, Augusta, Georgia, USA
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Streja E, Kovesdy CP, Streja DA, Moradi H, Kalantar-Zadeh K, Kashyap ML. Niacin and Progression of CKD. Am J Kidney Dis 2015; 65:785-98. [DOI: 10.1053/j.ajkd.2014.11.033] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2014] [Accepted: 11/19/2014] [Indexed: 12/17/2022]
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Csató V, Pető A, Fülöp GÁ, Rutkai I, Pásztor ET, Fagyas M, Kalász J, Édes I, Tóth A, Papp Z. Myeloperoxidase evokes substantial vasomotor responses in isolated skeletal muscle arterioles of the rat. Acta Physiol (Oxf) 2015; 214:109-23. [PMID: 25760778 PMCID: PMC4654238 DOI: 10.1111/apha.12488] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2014] [Revised: 01/19/2015] [Accepted: 03/09/2015] [Indexed: 12/20/2022]
Abstract
Aims Myeloperoxidase (MPO) catalyses the formation of a wide variety of oxidants, including hypochlorous acid (HOCl), and contributes to cardiovascular disease progression. We hypothesized that during its action MPO evokes substantial vasomotor responses. Methods Following exposure to MPO (1.92 mU mL−1) in the presence of increasing concentrations of hydrogen peroxide (H2O2), changes in arteriolar diameter of isolated gracilis skeletal muscle arterioles (SMAs) and coronary arterioles (CAs) and in the isometric force in basilar arteries (BAs) of the rat were monitored. Results Myeloperoxidase increased vascular tone to different degrees in CAs, SMAs and BAs. The mechanism of increased vasoconstriction was studied in detail in SMAs. MPO-evoked vasoconstrictions were prevented by the MPO inhibitor 4-aminobenzhydrazide (50 μm), by endothelium removal in the SMAs. Surprisingly, the HOCl scavenger L-methionine (100 μm), the thromboxane A2 (TXA2) antagonist SQ-29548 (1 μm) or the non-specific cyclooxygenase (COX) antagonist indomethacin (1 μm) converted the MPO-evoked vasoconstrictions to pronounced vasodilations in SMAs, not seen in the presence of H2O2. In contrast to noradrenaline-induced vasoconstrictions, the MPO-evoked vasoconstrictions were not accompanied by significant increases in arteriolar [Ca2+] levels in SMAs. Conclusion These data showed that H2O2-derived HOCl to be a potent vasoconstrictor upon MPO application. HOCl activated the COX pathway, causing the synthesis and release of a TXA2-like substance to increase the Ca2+ sensitivity of the contractile apparatus in vascular smooth muscle cells and thereby to augment H2O2-evoked vasoconstrictions. Nevertheless, inhibition of the HOCl–COX–TXA2 pathway unmasked the effects of additional MPO-derived radicals with a marked vasodilatory potential in SMAs.
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Affiliation(s)
- V. Csató
- Division of Clinical Physiology Institute of Cardiology Research Center for Molecular Medicine Faculty of Medicine University of Debrecen Debrecen Hungary
| | - A. Pető
- Division of Clinical Physiology Institute of Cardiology Research Center for Molecular Medicine Faculty of Medicine University of Debrecen Debrecen Hungary
| | - G. Á. Fülöp
- Division of Clinical Physiology Institute of Cardiology Research Center for Molecular Medicine Faculty of Medicine University of Debrecen Debrecen Hungary
| | - I. Rutkai
- Division of Clinical Physiology Institute of Cardiology Research Center for Molecular Medicine Faculty of Medicine University of Debrecen Debrecen Hungary
| | - E. T. Pásztor
- Division of Clinical Physiology Institute of Cardiology Research Center for Molecular Medicine Faculty of Medicine University of Debrecen Debrecen Hungary
| | - M. Fagyas
- Division of Clinical Physiology Institute of Cardiology Research Center for Molecular Medicine Faculty of Medicine University of Debrecen Debrecen Hungary
| | - J. Kalász
- Division of Clinical Physiology Institute of Cardiology Research Center for Molecular Medicine Faculty of Medicine University of Debrecen Debrecen Hungary
| | - I. Édes
- Division of Clinical Physiology Institute of Cardiology Research Center for Molecular Medicine Faculty of Medicine University of Debrecen Debrecen Hungary
| | - A. Tóth
- Division of Clinical Physiology Institute of Cardiology Research Center for Molecular Medicine Faculty of Medicine University of Debrecen Debrecen Hungary
| | - Z. Papp
- Division of Clinical Physiology Institute of Cardiology Research Center for Molecular Medicine Faculty of Medicine University of Debrecen Debrecen Hungary
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Smith CK, Vivekanandan-Giri A, Tang C, Knight JS, Mathew A, Padilla RL, Gillespie BW, Carmona-Rivera C, Liu X, Subramanian V, Hasni S, Thompson PR, Heinecke JW, Saran R, Pennathur S, Kaplan MJ. Neutrophil extracellular trap-derived enzymes oxidize high-density lipoprotein: an additional proatherogenic mechanism in systemic lupus erythematosus. Arthritis Rheumatol 2014; 66:2532-2544. [PMID: 24838349 DOI: 10.1002/art.38703] [Citation(s) in RCA: 154] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2013] [Accepted: 05/08/2014] [Indexed: 12/13/2022]
Abstract
OBJECTIVE Oxidative stress and oxidized high-density lipoprotein (HDL) are implicated as risk factors for cardiovascular disease (CVD) in systemic lupus erythematosus (SLE). Yet, how HDL is oxidized and rendered dysfunctional in SLE remains unclear. Neutrophil extracellular traps (NETs), the levels of which are elevated in lupus, possess oxidant-generating enzymes, including myeloperoxidase (MPO), NADPH oxidase (NOX), and nitric oxide synthase (NOS). We hypothesized that NETs mediate HDL oxidation, impairing cholesterol efflux capacity (CEC). METHODS Plasma MPO levels and CEC activity were examined in controls and lupus patients, and 3-chlorotyrosine (MPO specific) and 3-nitrotyrosine (derived from reactive nitrogen species) were quantified in human HDL. Multivariable linear models were used to estimate and test differences between groups. HDL was exposed to NETs from control and lupus neutrophils in the presence or absence of MPO, NOX, NOS inhibitors, and chloroquine (CQ). Murine HDL oxidation was quantified after NET inhibition in vivo. RESULTS SLE patients displayed higher MPO levels and diminished CEC compared to controls. SLE HDL had higher 3-nitrotyrosine and 3-chlorotyrosine content than control HDL, with site-specific oxidation signatures on apolipoprotein A-I. Experiments with human and murine NETs confirmed that chlorination was mediated by MPO and NOX, and nitration by NOS and NOX. Mice with lupus treated with the NET inhibitor Cl-amidine displayed significantly decreased HDL oxidation. CQ inhibited NET formation in vitro. CONCLUSION Active NOS, NOX, and MPO within NETs significantly modify HDL, rendering the lipoprotein proatherogenic. Since NET formation is enhanced in SLE, these findings support a novel role for NET-derived lipoprotein oxidation in SLE-associated CVD and identify additional proatherogenic roles of neutrophils and putative protective roles of antimalarials in autoimmunity.
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Affiliation(s)
- Carolyne K Smith
- Systemic Autoimmunity Branch, Intramural Research Program, National Institute of Arthritis and Musculoskeletal and Skin Diseases, National Institutes of Health, Bethesda, MD 20892
| | | | - Chongren Tang
- Department of Medicine and Diabetes and Obesity Center of Excellence, University of Washington, Seattle, WA 98109
| | - Jason S Knight
- Department of Internal Medicine, University of Michigan, Ann Arbor, MI 48109
| | - Anna Mathew
- Department of Internal Medicine, University of Michigan, Ann Arbor, MI 48109
| | - Robin L Padilla
- Kidney Epidemiology and Cost Center and Biostatistics, University of Michigan, Ann Arbor, MI 48109
| | - Brenda W Gillespie
- Kidney Epidemiology and Cost Center and Biostatistics, University of Michigan, Ann Arbor, MI 48109
| | - Carmelo Carmona-Rivera
- Systemic Autoimmunity Branch, Intramural Research Program, National Institute of Arthritis and Musculoskeletal and Skin Diseases, National Institutes of Health, Bethesda, MD 20892
| | - Xiaodan Liu
- Department of Internal Medicine, University of Michigan, Ann Arbor, MI 48109
| | | | - Sarfaraz Hasni
- Systemic Autoimmunity Branch, Intramural Research Program, National Institute of Arthritis and Musculoskeletal and Skin Diseases, National Institutes of Health, Bethesda, MD 20892
| | | | - Jay W Heinecke
- Department of Medicine and Diabetes and Obesity Center of Excellence, University of Washington, Seattle, WA 98109
| | - Rajiv Saran
- Department of Internal Medicine, University of Michigan, Ann Arbor, MI 48109.,Kidney Epidemiology and Cost Center and Biostatistics, University of Michigan, Ann Arbor, MI 48109
| | | | - Mariana J Kaplan
- Systemic Autoimmunity Branch, Intramural Research Program, National Institute of Arthritis and Musculoskeletal and Skin Diseases, National Institutes of Health, Bethesda, MD 20892
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Nakaoka H, Tajima A, Yoneyama T, Hosomichi K, Kasuya H, Mizutani T, Inoue I. Gene expression profiling reveals distinct molecular signatures associated with the rupture of intracranial aneurysm. Stroke 2014; 45:2239-45. [PMID: 24938844 DOI: 10.1161/strokeaha.114.005851] [Citation(s) in RCA: 88] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND AND PURPOSE The rupture of intracranial aneurysm (IA) causes subarachnoid hemorrhage associated with high morbidity and mortality. We compared gene expression profiles in aneurysmal domes between unruptured IAs and ruptured IAs (RIAs) to elucidate biological mechanisms predisposing to the rupture of IA. METHODS We determined gene expression levels of 8 RIAs, 5 unruptured IAs, and 10 superficial temporal arteries with the Agilent microarrays. To explore biological heterogeneity of IAs, we classified the samples into subgroups showing similar gene expression patterns, using clustering methods. RESULTS The clustering analysis identified 4 groups: superficial temporal arteries and unruptured IAs were aggregated into their own clusters, whereas RIAs segregated into 2 distinct subgroups (early and late RIAs). Comparing gene expression levels between early RIAs and unruptured IAs, we identified 430 upregulated and 617 downregulated genes in early RIAs. The upregulated genes were associated with inflammatory and immune responses and phagocytosis including S100/calgranulin genes (S100A8, S100A9, and S100A12). The downregulated genes suggest mechanical weakness of aneurysm walls. The expressions of Krüppel-like family of transcription factors (KLF2, KLF12, and KLF15), which were anti-inflammatory regulators, and CDKN2A, which was located on chromosome 9p21 that was the most consistently replicated locus in genome-wide association studies of IA, were also downregulated. CONCLUSIONS We demonstrate that gene expression patterns of RIAs were different according to the age of patients. The results suggest that macrophage-mediated inflammation is a key biological pathway for IA rupture. The identified genes can be good candidates for molecular markers of rupture-prone IAs and therapeutic targets.
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Affiliation(s)
- Hirofumi Nakaoka
- From the Division of Human Genetics, Department of Integrated Genetics, National Institute of Genetics, Mishima, Japan (H.N., K.H., I.I.); Department of Human Genetics, Institute of Health Biosciences, The University of Tokushima Graduate School, Tokushima, Japan (A.T.); Department of Neurosurgery, Neurological Institute, Tokyo Women's Medical University, Tokyo, Japan (T.Y., H.K.); and Department of Neurosurgery, School of Medicine, Showa University, Tokyo, Japan (T.M.)
| | - Atsushi Tajima
- From the Division of Human Genetics, Department of Integrated Genetics, National Institute of Genetics, Mishima, Japan (H.N., K.H., I.I.); Department of Human Genetics, Institute of Health Biosciences, The University of Tokushima Graduate School, Tokushima, Japan (A.T.); Department of Neurosurgery, Neurological Institute, Tokyo Women's Medical University, Tokyo, Japan (T.Y., H.K.); and Department of Neurosurgery, School of Medicine, Showa University, Tokyo, Japan (T.M.)
| | - Taku Yoneyama
- From the Division of Human Genetics, Department of Integrated Genetics, National Institute of Genetics, Mishima, Japan (H.N., K.H., I.I.); Department of Human Genetics, Institute of Health Biosciences, The University of Tokushima Graduate School, Tokushima, Japan (A.T.); Department of Neurosurgery, Neurological Institute, Tokyo Women's Medical University, Tokyo, Japan (T.Y., H.K.); and Department of Neurosurgery, School of Medicine, Showa University, Tokyo, Japan (T.M.)
| | - Kazuyoshi Hosomichi
- From the Division of Human Genetics, Department of Integrated Genetics, National Institute of Genetics, Mishima, Japan (H.N., K.H., I.I.); Department of Human Genetics, Institute of Health Biosciences, The University of Tokushima Graduate School, Tokushima, Japan (A.T.); Department of Neurosurgery, Neurological Institute, Tokyo Women's Medical University, Tokyo, Japan (T.Y., H.K.); and Department of Neurosurgery, School of Medicine, Showa University, Tokyo, Japan (T.M.)
| | - Hidetoshi Kasuya
- From the Division of Human Genetics, Department of Integrated Genetics, National Institute of Genetics, Mishima, Japan (H.N., K.H., I.I.); Department of Human Genetics, Institute of Health Biosciences, The University of Tokushima Graduate School, Tokushima, Japan (A.T.); Department of Neurosurgery, Neurological Institute, Tokyo Women's Medical University, Tokyo, Japan (T.Y., H.K.); and Department of Neurosurgery, School of Medicine, Showa University, Tokyo, Japan (T.M.)
| | - Tohru Mizutani
- From the Division of Human Genetics, Department of Integrated Genetics, National Institute of Genetics, Mishima, Japan (H.N., K.H., I.I.); Department of Human Genetics, Institute of Health Biosciences, The University of Tokushima Graduate School, Tokushima, Japan (A.T.); Department of Neurosurgery, Neurological Institute, Tokyo Women's Medical University, Tokyo, Japan (T.Y., H.K.); and Department of Neurosurgery, School of Medicine, Showa University, Tokyo, Japan (T.M.)
| | - Ituro Inoue
- From the Division of Human Genetics, Department of Integrated Genetics, National Institute of Genetics, Mishima, Japan (H.N., K.H., I.I.); Department of Human Genetics, Institute of Health Biosciences, The University of Tokushima Graduate School, Tokushima, Japan (A.T.); Department of Neurosurgery, Neurological Institute, Tokyo Women's Medical University, Tokyo, Japan (T.Y., H.K.); and Department of Neurosurgery, School of Medicine, Showa University, Tokyo, Japan (T.M.).
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Tsai MS, Shaw HM, Li YJ, Lin MT, Lee WT, Chan KS. Myeloperoxidase in chronic kidney disease: Role of visceral fat. Nephrology (Carlton) 2014; 19:136-42. [DOI: 10.1111/nep.12187] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/04/2013] [Indexed: 12/31/2022]
Affiliation(s)
- Min-Sung Tsai
- Division of Nephrology; Department of Internal Medicine; Kuo General Hospital; Tainan Taiwan
| | - Huey-Mei Shaw
- Department of Health and Nutrition; Chia-Nan University of Pharmacy and Science; Tainan Taiwan
| | - Yi-Jen Li
- Department of Nutrition and Health Sciences; Chang-Jung Christian University; Tainan Taiwan
| | - Meng-Te Lin
- Division of Nephrology; Department of Internal Medicine; Kuo General Hospital; Tainan Taiwan
| | - Wen-Tsung Lee
- Department of Laboratory Medicine; Kuo General Hospital; Tainan Taiwan
| | - Khee-Siang Chan
- Department of Intensive Care Medicine; Chi-Mei Hospital; Tainan Taiwan
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Witaicenis A, Seito LN, da Silveira Chagas A, de Almeida LD, Luchini AC, Rodrigues-Orsi P, Cestari SH, Di Stasi LC. Antioxidant and intestinal anti-inflammatory effects of plant-derived coumarin derivatives. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2014; 21:240-6. [PMID: 24176844 DOI: 10.1016/j.phymed.2013.09.001] [Citation(s) in RCA: 175] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2013] [Revised: 08/02/2013] [Accepted: 09/19/2013] [Indexed: 05/25/2023]
Abstract
BACKGROUND Coumarins, also known as benzopyrones, are plant-derived products with several pharmacological properties, including antioxidant and anti-inflammatory activities. Based on the wide distribution of coumarin derivatives in plant-based foods and beverages in the human diet, our objective was to evaluate both the antioxidant and intestinal anti-inflammatory activities of six coumarin derivatives of plant origin (scopoletin, scoparone, fraxetin, 4-methyl-umbeliferone, esculin and daphnetin) to verify if potential intestinal anti-inflammatory activity was related to antioxidant properties. METHODS Intestinal inflammation was induced by intracolonic instillation of TNBS in rats. The animals were treated with coumarins by oral route. The animals were killed 48 h after colitis induction. The colonic segments were obtained after laparotomy and macroscopic and biochemical parameters (determination of glutathione level and myeloperoxidase and alkaline phosphatase activities) were evaluated. The antioxidant properties of these coumarins were examined by lipid peroxidation and DPPH assays. RESULTS Treatment with esculin, scoparone and daphnetin produced the best protective effects. All coumarin derivatives showed antioxidant activity in the DPPH assay, while daphnetin and fraxetin also showed antioxidant activity by inhibiting lipid peroxidation. Coumarins, except 4-methyl-umbeliferone, also showed antioxidant activity through the counteraction of glutathione levels or through the inhibition of myeloperoxidase activity. DISCUSSION The intestinal anti-inflammatory activity of coumarin derivatives were related to their antioxidant properties, suggesting that consumption of coumarins and/or foods rich in coumarin derivatives, particularly daphnetin, esculin and scoparone, could prevent intestinal inflammatory disease.
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Affiliation(s)
- Aline Witaicenis
- Laboratory of Phytomedicines, Department of Pharmacology, Institute of Biosciences, University Estadual Paulista (UNESP), Botucatu, São Paulo, Brazil
| | - Leonardo Noboru Seito
- Laboratory of Phytomedicines, Department of Pharmacology, Institute of Biosciences, University Estadual Paulista (UNESP), Botucatu, São Paulo, Brazil
| | - Alexandre da Silveira Chagas
- Laboratory of Phytomedicines, Department of Pharmacology, Institute of Biosciences, University Estadual Paulista (UNESP), Botucatu, São Paulo, Brazil
| | - Luiz Domingues de Almeida
- Laboratory of Phytomedicines, Department of Pharmacology, Institute of Biosciences, University Estadual Paulista (UNESP), Botucatu, São Paulo, Brazil
| | - Ana Carolina Luchini
- Laboratory of Phytomedicines, Department of Pharmacology, Institute of Biosciences, University Estadual Paulista (UNESP), Botucatu, São Paulo, Brazil
| | - Patrícia Rodrigues-Orsi
- Laboratory of Phytomedicines, Department of Pharmacology, Institute of Biosciences, University Estadual Paulista (UNESP), Botucatu, São Paulo, Brazil
| | - Silvia Helena Cestari
- Laboratory of Phytomedicines, Department of Pharmacology, Institute of Biosciences, University Estadual Paulista (UNESP), Botucatu, São Paulo, Brazil
| | - Luiz Claudio Di Stasi
- Laboratory of Phytomedicines, Department of Pharmacology, Institute of Biosciences, University Estadual Paulista (UNESP), Botucatu, São Paulo, Brazil.
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Carbamylation of LDL and its relationship with myeloperoxidase in type 2 diabetes mellitus. Clin Sci (Lond) 2013; 126:175-81. [PMID: 23905837 DOI: 10.1042/cs20130369] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
LDL (low-density lipoprotein) is subjected to pro-atherogenic modifications in the circulation. A novel uraemia-independent mechanism of carbamylation of lipoproteins mediated by MPO (myeloperoxidase) has recently been reported. We have investigated whether carbamylation of LDL was increased in patients with Type 2 diabetes without renal impairment and the role of MPO. cLDL (carbamylated LDL) and MPO were measured by ELISA in a cross-sectional study of 198 patients and 174 non-diabetic controls. The impact of lowering MPO on plasma cLDL was determined by assaying cLDL and MPO in archived samples from a previous randomized open-label parallel group study comparing rosiglitazone (n=20) and sulfonylurea (n=24). Both plasma cLDL (P<0.05) and MPO levels (P<0.01) were higher in patients with Type 2 diabetes than controls in the cross-sectional study. Plasma cLDL correlated with MPO (r=0.42 and P<0.01) in subjects with diabetes, and plasma MPO was an independent determinant of plasma cLDL even after adjusting for age, gender, BMI (body mass index), apoB (apolipoprotein B), urea and HbA1c (glycated haemoglobin). In the randomized trial, rosiglitazone significantly lowered MPO (P<0.01) and cLDL (P<0.05), whereas no changes were observed in the sulfonylurea group despite a similar reduction in HbA1c. The magnitude of reduction in plasma cLDL correlated with changes in MPO, but not with HbA1c in the rosiglitazone group, suggesting that lowering MPO reduced plasma cLDL. Plasma cLDL is increased in patients with Type 2 diabetes even in the absence of renal impairment and carbamylation of LDL in these subjects is mainly mediated by MPO and not by urea.
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Orsi PR, Seito LN, Di Stasi LC. Hymenaea stigonocarpa Mart. ex Hayne: A tropical medicinal plant with intestinal anti-inflammatory activity in TNBS model of intestinal inflammation in rats. JOURNAL OF ETHNOPHARMACOLOGY 2013; 151:380-385. [PMID: 24211392 DOI: 10.1016/j.jep.2013.10.056] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2013] [Revised: 10/17/2013] [Accepted: 10/23/2013] [Indexed: 06/02/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Stem bark and fruit pulp of Hymenaea stigonocarpa Mart ex. Hayne (Fabaceae) has been popularly used to treat inflammation and gastrointestinal diseases including ulcers, diarrhea and gastric pain. The aim of this study was to investigate the intestinal anti-inflammatory activity of a methanol extract derived from the stem bark and diet with fruit pulp of Hymenaea stigonocarpa in the TNBS model of intestinal inflammation in rats. MATERIAL AND METHODS The intestinal anti-inflammatory activity of stem bark extract (100, 200 and 400mg/kg) and fruit pulp (10% and 5% in diet) was measured against the intestinal inflammatory process induced by TNBS (trinitrobenzesulphonic acid) in rats. The protective effects were evaluated as follows: evaluation of intestinal damage (damage score, extension of lesion, colon weight/length ratio), incidence of diarrhea and adherence to adjacent organs, colon glutathione (GSH) and malondialdehyde (MDA) contents, myeloperoxidase (MPO) and alkaline phosphatase (AP) activities. In addition, in vitro studies on lipid peroxidation in rat brain membranes and phytochemical profile were performed with both stem bark and fruit pulp. RESULTS Treatment with 100, 200 and 400mg/kg of stem bark extract and 10% fruit pulp flour showed protective effects in the TNBS-induced colon damage, which was related to inhibition of MPO and AP activities, reduction in colon MDA content, and counteraction of GSH depletion induced by inflammatory process. A concentration-dependent inhibitory effect on the lipid peroxidation in rat brain membranes for stem bark and fruit pulp was determined, with an IC50 value of 5.25 ± 0.23 μg/mL and 27.33 ± 0.09 μg/mL, respectively. Similar phytochemical composition was observed in fruit and stem bark, including mainly flavonoids, condensed tannins and terpenes. CONCLUSIONS Stem bark extract and fruit pulp flour of Hymenaea stigonocarpa prevented TNBS-induced colonic damage in rats and this protective effect were associated to an improvement of intestinal oxidative stress. The observed anti-inflammatory and antioxidant effects may be associated to the presence of flavonoids and tannins in the stem bark and fruit pulp of Hymenaea stigonocarpa.
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Affiliation(s)
- Patrícia Rodrigues Orsi
- Department of Pharmacology, Institute of Biosciences, Univ. Estadual Paulista, UNESP, Botucatu, SP, CEP 18618-970, Brazil
| | - Leonardo Noboru Seito
- Department of Pharmacology, Institute of Biosciences, Univ. Estadual Paulista, UNESP, Botucatu, SP, CEP 18618-970, Brazil
| | - Luiz Claudio Di Stasi
- Department of Pharmacology, Institute of Biosciences, Univ. Estadual Paulista, UNESP, Botucatu, SP, CEP 18618-970, Brazil.
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Reiner AP, Hartiala J, Zeller T, Bis JC, Dupuis J, Fornage M, Baumert J, Kleber ME, Wild PS, Baldus S, Bielinski SJ, Fontes JD, Illig T, Keating BJ, Lange LA, Ojeda F, Müller-Nurasyid M, Munzel TF, Psaty BM, Rice K, Rotter JI, Schnabel RB, Tang WHW, Thorand B, Erdmann J, Jacobs DR, Wilson JG, Koenig W, Tracy RP, Blankenberg S, März W, Gross MD, Benjamin EJ, Hazen SL, Allayee H. Genome-wide and gene-centric analyses of circulating myeloperoxidase levels in the charge and care consortia. Hum Mol Genet 2013; 22:3381-93. [PMID: 23620142 DOI: 10.1093/hmg/ddt189] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Increased systemic levels of myeloperoxidase (MPO) are associated with the risk of coronary artery disease (CAD). To identify the genetic factors that are associated with circulating MPO levels, we carried out a genome-wide association study (GWAS) and a gene-centric analysis in subjects of European ancestry and African Americans (AAs). A locus on chromosome 1q31.1 containing the complement factor H (CFH) gene was strongly associated with serum MPO levels in 9305 subjects of European ancestry (lead SNP rs800292; P = 4.89 × 10(-41)) and in 1690 AA subjects (rs505102; P = 1.05 × 10(-8)). Gene-centric analyses in 8335 subjects of European ancestry additionally identified two rare MPO coding sequence variants that were associated with serum MPO levels (rs28730837, P = 5.21 × 10(-12); rs35897051, P = 3.32 × 10(-8)). A GWAS for plasma MPO levels in 9260 European ancestry subjects identified a chromosome 17q22 region near MPO that was significantly associated (lead SNP rs6503905; P = 2.94 × 10(-12)), but the CFH locus did not exhibit evidence of association with plasma MPO levels. Functional analyses revealed that rs800292 was associated with levels of complement proteins in serum. Variants at chromosome 17q22 also had pleiotropic cis effects on gene expression. In a case-control analysis of ∼80 000 subjects from CARDIoGRAM, none of the identified single-nucleotide polymorphisms (SNPs) were associated with CAD. These results suggest that distinct genetic factors regulate serum and plasma MPO levels, which may have relevance for various acute and chronic inflammatory disorders. The clinical implications for CAD and a better understanding of the functional basis for the association of CFH and MPO variants with circulating MPO levels require further study.
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Affiliation(s)
- Mahir Karakas
- Department of Internal Medicine II-Cardiology, University of Ulm Medical Center, Albert-Einstein-Allee 23, 89081 Ulm, Germany
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